Sinkstack app analytics for September 12

Sinkstack is a simple sinking-funds envelope tracker for irregular expenses like insurance, gifts, repairs, fees, and renewals. Create envelopes with a goal amount, current balance, monthly contribution, due date, and color. The dashboard shows how close each fund is and when it should be fully funded at the current pace. Sinkstack is local-first and offline. No account, no ads, no analytics, no tracking, and no subscription are included.